- #1
LennoxLewis
- 129
- 1
Both are point sources.
Source A emits 500 KeV gamma-rays, while source B emits betas, with maximum energy of 500 KeV. Assume that the sources have equal activity, the same range, and are close enough for absorption of betas in air not to be a factor. Which gives the higher external dose rate for a worker?
My guess is that it would be the betas because they get stopped by a cm of skin, if that, while some of the gammas might go through and do not deposit all of their energy? Would there be a large difference?Sidenote, this is NOT taking into account the fact that dose absorbed by the dead skin layer (600 um on the hands?) is not so relevant
Source A emits 500 KeV gamma-rays, while source B emits betas, with maximum energy of 500 KeV. Assume that the sources have equal activity, the same range, and are close enough for absorption of betas in air not to be a factor. Which gives the higher external dose rate for a worker?
My guess is that it would be the betas because they get stopped by a cm of skin, if that, while some of the gammas might go through and do not deposit all of their energy? Would there be a large difference?Sidenote, this is NOT taking into account the fact that dose absorbed by the dead skin layer (600 um on the hands?) is not so relevant